While some xerophilous grasshoppers became scarce within the shelterbelt system, others, e.g. Calliptamus italicus, increased in importance. |
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The outside row of a shelterbelt acts as a snow trap and starts deflecting the wind current up. |
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Villosa lilac can also be planted as a single or multiple row field shelterbelt. |
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In the case of existing sites, planting a shelterbelt, ensuring the site is clean, and attractive landscaping are some solutions. |
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It can be planted as a single row field shelterbelt or added in with other species in single or multiple row shelterbelts to improve diversity. |
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Decide on the number of shelterbelt rows required to properly protect the field. |
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They typically nest on the ground among the dense cover of a hedgerow, shelterbelt, or brushy roadside, although they have been known to nest in the open. |
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Oak lacebug can turn the leaves off-color, causing long-term stress that heavily defoliates bur oaks in shelterbelt plantings, especially during dry weather. |
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Hebes, cistus, cordyline, pittosporum and many others will all add decoration and provide a shelterbelt behind which more delicate plants can grow. |
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The crucial trees providing the shelterbelt proved vulnerable, three years later, to a single hurricane. |
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These factors will determine proper shelterbelt location and species selection, he says. |
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Similarly, it was unclear how the planting and performance of shelterbelt trees are being monitored under the shelterbelt program. |
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The other rows in the shelterbelt system can consist of denser species as there will be significantly less snow for these trees to trap. |
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Shelterbelt or mixed in with taller trees within a single or multiple row field shelterbelt system. |
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For example, a multi-row wildlife field shelterbelt which curves around a rock pile could also function as a travel corridor. |
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Since the area protected is directly related to the height of the shelterbelt, the planting of tall trees is recommended wherever possible. |
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Poplars can be planted on the inside row if the shelterbelt design does not include spruce or pine. |
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Avoid any access roads or openings in the shelterbelt which will allow the prevailing winds to blow unchecked across the field. |
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When you have selected appropriate tree species and determined the number of rows, draw them on your field shelterbelt plan. |
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In Larsson's scheme, great masses of the bacteria would be injected into dunes across the breadth of the Sahara, creating a bulwark against the sand and solid footing for a shelterbelt of trees. |
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Green ash is less dense and, therefore, snow distribution on the leeward side of a green ash shelterbelt will be more evenly spread across the field. |
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The shelterbelt program, as it was called, took trees from many parts of the world — including a hardy species from the Asian steppe, called tamarisk or salt cedar — and planted them by the millions. |
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Projects like riparian area management, erosion control, shelterbelt establishment, consultative services for riparian health may qualify for assistance. |
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As this first row may intercept snow blowing from a considerable distance you should be aware of the amount of snow this shelterbelt could potentially trap. |
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For instance, if one treatment is always downwind, or uphill, or nearer the shelterbelt than the other, this might unfairly influence the comparison. |
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